<?php
/**
 * @Author: Wang chunsheng  email:2192138785@qq.com
 * @Date:   2020-08-05 16:01:55
 * @Last Modified by:   Wang chunsheng  email:2192138785@qq.com
 * @Last Modified time: 2020-08-05 22:54:38
 */
 
namespace common\helpers\soap;



/**
 * parses a WSDL file, allows access to it's data, other utility methods.
 * also builds WSDL structures programmatically.
 *
 * @author   Dietrich Ayala <dietrich@ganx4.com>
 * @author   Scott Nichol <snichol@users.sourceforge.net>
 * @version  $Id: nusoap.php,v 1.123 2010/04/26 20:15:08 snichol Exp $
 * @access public
 */
class wsdl extends nusoap_base
{
    // URL or filename of the root of this WSDL
    var $wsdl;
    // define internal arrays of bindings, ports, operations, messages, etc.
    var $schemas = array();
    var $currentSchema;
    var $message = array();
    var $complexTypes = array();
    var $messages = array();
    var $currentMessage;
    var $currentOperation;
    var $portTypes = array();
    var $currentPortType;
    var $bindings = array();
    var $currentBinding;
    var $ports = array();
    var $currentPort;
    var $opData = array();
    var $status = '';
    var $documentation = false;
    var $endpoint = '';
    // array of wsdl docs to import
    var $import = array();
    // parser vars
    var $parser;
    var $position = 0;
    var $depth = 0;
    var $depth_array = array();
    // for getting wsdl
    var $proxyhost = '';
    var $proxyport = '';
    var $proxyusername = '';
    var $proxypassword = '';
    var $timeout = 0;
    var $response_timeout = 30;
    var $curl_options = array();    // User-specified cURL options
    var $use_curl = false;            // whether to always try to use cURL
    // for HTTP authentication
    var $username = '';                // Username for HTTP authentication
    var $password = '';                // Password for HTTP authentication
    var $authtype = '';                // Type of HTTP authentication
    var $certRequest = array();        // Certificate for HTTP SSL authentication

    /**
     * constructor
     *
     * @param string $wsdl WSDL document URL
     * @param string $proxyhost
     * @param string $proxyport
     * @param string $proxyusername
     * @param string $proxypassword
     * @param integer $timeout set the connection timeout
     * @param integer $response_timeout set the response timeout
     * @param array $curl_options user-specified cURL options
     * @param boolean $use_curl try to use cURL
     * @access public
     */
    function __construct($wsdl = '', $proxyhost = false, $proxyport = false, $proxyusername = false, $proxypassword = false, $timeout = 0, $response_timeout = 30, $curl_options = null, $use_curl = false)
    {
        parent::__construct();
        $this->debug("ctor wsdl=$wsdl timeout=$timeout response_timeout=$response_timeout");
        $this->proxyhost = $proxyhost;
        $this->proxyport = $proxyport;
        $this->proxyusername = $proxyusername;
        $this->proxypassword = $proxypassword;
        $this->timeout = $timeout;
        $this->response_timeout = $response_timeout;
        if (is_array($curl_options)) {
            $this->curl_options = $curl_options;
        }
        $this->use_curl = $use_curl;
        $this->fetchWSDL($wsdl);
    }

    /**
     * fetches the WSDL document and parses it
     *
     * @access public
     */
    function fetchWSDL($wsdl)
    {
        $this->debug("parse and process WSDL path=$wsdl");
        $this->wsdl = $wsdl;
        // parse wsdl file
        if ($this->wsdl != "") {
            $this->parseWSDL($this->wsdl);
        }
        // imports
        // TODO: handle imports more properly, grabbing them in-line and nesting them
        $imported_urls = array();
        $imported = 1;
        while ($imported > 0) {
            $imported = 0;
            // Schema imports
            foreach ($this->schemas as $ns => $list) {
                foreach ($list as $xs) {
                    $wsdlparts = parse_url($this->wsdl);    // this is bogusly simple!
                    foreach ($xs->imports as $ns2 => $list2) {
                        for ($ii = 0; $ii < count($list2); $ii++) {
                            if (array_key_exists($ii, $list2) && !isset($list2[$ii]['loaded'])) {
                                $this->schemas[$ns][$ns2]->imports[$ns2][$ii]['loaded'] = true;
                                $url = $list2[$ii]['location'];
                                if ($url != '') {
                                    $urlparts = parse_url($url);
                                    if (!isset($urlparts['host'])) {
                                        $url = $wsdlparts['scheme'] . '://' . $wsdlparts['host'] . (isset($wsdlparts['port']) ? ':' . $wsdlparts['port'] : '') .
                                            substr($wsdlparts['path'], 0, strrpos($wsdlparts['path'], '/') + 1) . $urlparts['path'];
                                    }
                                    if (!in_array($url, $imported_urls)) {
                                        $this->parseWSDL($url);
                                        $imported++;
                                        $imported_urls[] = $url;
                                    }
                                } else {
                                    $this->debug("Unexpected scenario: empty URL for unloaded import");
                                }
                            }
                        }
                    }
                }
            }
            // WSDL imports
            $wsdlparts = parse_url($this->wsdl);    // this is bogusly simple!
            foreach ($this->import as $ns => $list) {
                for ($ii = 0; $ii < count($list); $ii++) {
                    if (!$list[$ii]['loaded']) {
                        $this->import[$ns][$ii]['loaded'] = true;
                        $url = $list[$ii]['location'];
                        if ($url != '') {
                            $urlparts = parse_url($url);
                            if (!isset($urlparts['host'])) {
                                $url = $wsdlparts['scheme'] . '://' . $wsdlparts['host'] . (isset($wsdlparts['port']) ? ':' . $wsdlparts['port'] : '') .
                                    substr($wsdlparts['path'], 0, strrpos($wsdlparts['path'], '/') + 1) . $urlparts['path'];
                            }
                            if (!in_array($url, $imported_urls)) {
                                $this->parseWSDL($url);
                                $imported++;
                                $imported_urls[] = $url;
                            }
                        } else {
                            $this->debug("Unexpected scenario: empty URL for unloaded import");
                        }
                    }
                }
            }
        }
        // add new data to operation data
        foreach ($this->bindings as $binding => $bindingData) {
            if (isset($bindingData['operations']) && is_array($bindingData['operations'])) {
                foreach ($bindingData['operations'] as $operation => $data) {
                    $this->debug('post-parse data gathering for ' . $operation);
                    $this->bindings[$binding]['operations'][$operation]['input'] =
                        isset($this->bindings[$binding]['operations'][$operation]['input']) ?
                            array_merge($this->bindings[$binding]['operations'][$operation]['input'], $this->portTypes[$bindingData['portType']][$operation]['input']) :
                            $this->portTypes[$bindingData['portType']][$operation]['input'];
                    $this->bindings[$binding]['operations'][$operation]['output'] =
                        isset($this->bindings[$binding]['operations'][$operation]['output']) ?
                            array_merge($this->bindings[$binding]['operations'][$operation]['output'], $this->portTypes[$bindingData['portType']][$operation]['output']) :
                            $this->portTypes[$bindingData['portType']][$operation]['output'];
                    if (isset($this->messages[$this->bindings[$binding]['operations'][$operation]['input']['message']])) {
                        $this->bindings[$binding]['operations'][$operation]['input']['parts'] = $this->messages[$this->bindings[$binding]['operations'][$operation]['input']['message']];
                    }
                    if (isset($this->messages[$this->bindings[$binding]['operations'][$operation]['output']['message']])) {
                        $this->bindings[$binding]['operations'][$operation]['output']['parts'] = $this->messages[$this->bindings[$binding]['operations'][$operation]['output']['message']];
                    }
                    // Set operation style if necessary, but do not override one already provided
                    if (isset($bindingData['style']) && !isset($this->bindings[$binding]['operations'][$operation]['style'])) {
                        $this->bindings[$binding]['operations'][$operation]['style'] = $bindingData['style'];
                    }
                    $this->bindings[$binding]['operations'][$operation]['transport'] = isset($bindingData['transport']) ? $bindingData['transport'] : '';
                    $this->bindings[$binding]['operations'][$operation]['documentation'] = isset($this->portTypes[$bindingData['portType']][$operation]['documentation']) ? $this->portTypes[$bindingData['portType']][$operation]['documentation'] : '';
                    $this->bindings[$binding]['operations'][$operation]['endpoint'] = isset($bindingData['endpoint']) ? $bindingData['endpoint'] : '';
                }
            }
        }
    }

    /**
     * parses the wsdl document
     *
     * @param string $wsdl path or URL
     * @access private
     */
    function parseWSDL($wsdl = '')
    {
        $this->debug("parse WSDL at path=$wsdl");

        if ($wsdl == '') {
            $this->debug('no wsdl passed to parseWSDL()!!');
            $this->setError('no wsdl passed to parseWSDL()!!');
            return false;
        }

        // parse $wsdl for url format
        $wsdl_props = parse_url($wsdl);

        if (isset($wsdl_props['scheme']) && ($wsdl_props['scheme'] == 'http' || $wsdl_props['scheme'] == 'https')) {
            $this->debug('getting WSDL http(s) URL ' . $wsdl);
            // get wsdl
            $tr = new soap_transport_http($wsdl, $this->curl_options, $this->use_curl);
            $tr->request_method = 'GET';
            $tr->useSOAPAction = false;
            if ($this->proxyhost && $this->proxyport) {
                $tr->setProxy($this->proxyhost, $this->proxyport, $this->proxyusername, $this->proxypassword);
            }
            if ($this->authtype != '') {
                $tr->setCredentials($this->username, $this->password, $this->authtype, array(), $this->certRequest);
            }
            $tr->setEncoding('gzip, deflate');
            $wsdl_string = $tr->send('', $this->timeout, $this->response_timeout);
            //$this->debug("WSDL request\n" . $tr->outgoing_payload);
            //$this->debug("WSDL response\n" . $tr->incoming_payload);
            $this->appendDebug($tr->getDebug());
            // catch errors
            if ($err = $tr->getError()) {
                $errstr = 'Getting ' . $wsdl . ' - HTTP ERROR: ' . $err;
                $this->debug($errstr);
                $this->setError($errstr);
                unset($tr);
                return false;
            }
            unset($tr);
            $this->debug("got WSDL URL");
        } else {
            // $wsdl is not http(s), so treat it as a file URL or plain file path
            if (isset($wsdl_props['scheme']) && ($wsdl_props['scheme'] == 'file') && isset($wsdl_props['path'])) {
                $path = isset($wsdl_props['host']) ? ($wsdl_props['host'] . ':' . $wsdl_props['path']) : $wsdl_props['path'];
            } else {
                $path = $wsdl;
            }
            $this->debug('getting WSDL file ' . $path);
            if ($fp = @fopen($path, 'r')) {
                $wsdl_string = '';
                while ($data = fread($fp, 32768)) {
                    $wsdl_string .= $data;
                }
                fclose($fp);
            } else {
                $errstr = "Bad path to WSDL file $path";
                $this->debug($errstr);
                $this->setError($errstr);
                return false;
            }
        }
        $this->debug('Parse WSDL');
        // end new code added
        // Create an XML parser.
        $this->parser = xml_parser_create();
        // Set the options for parsing the XML data.
        // xml_parser_set_option($parser, XML_OPTION_SKIP_WHITE, 1);
        xml_parser_set_option($this->parser, XML_OPTION_CASE_FOLDING, 0);
        // Set the object for the parser.
        xml_set_object($this->parser, $this);
        // Set the element handlers for the parser.
        xml_set_element_handler($this->parser, 'start_element', 'end_element');
        xml_set_character_data_handler($this->parser, 'character_data');
        // Parse the XML file.
        if (!xml_parse($this->parser, $wsdl_string, true)) {
            // Display an error message.
            $errstr = sprintf(
                'XML error parsing WSDL from %s on line %d: %s',
                $wsdl,
                xml_get_current_line_number($this->parser),
                xml_error_string(xml_get_error_code($this->parser))
            );
            $this->debug($errstr);
            $this->debug("XML payload:\n" . $wsdl_string);
            $this->setError($errstr);
            xml_parser_free($this->parser);
            unset($this->parser);
            return false;
        }
        // free the parser
        xml_parser_free($this->parser);
        unset($this->parser);
        $this->debug('Parsing WSDL done');
        // catch wsdl parse errors
        if ($this->getError()) {
            return false;
        }
        return true;
    }

    /**
     * start-element handler
     *
     * @param string $parser XML parser object
     * @param string $name element name
     * @param string $attrs associative array of attributes
     * @access private
     */
    function start_element($parser, $name, $attrs)
    {
        if ($this->status == 'schema') {
            $this->currentSchema->schemaStartElement($parser, $name, $attrs);
            $this->appendDebug($this->currentSchema->getDebug());
            $this->currentSchema->clearDebug();
        } elseif (preg_match('/schema$/', $name)) {
            $this->debug('Parsing WSDL schema');
            // $this->debug("startElement for $name ($attrs[name]). status = $this->status (".$this->getLocalPart($name).")");
            $this->status = 'schema';
            $this->currentSchema = new nusoap_xmlschema('', '', $this->namespaces);
            $this->currentSchema->schemaStartElement($parser, $name, $attrs);
            $this->appendDebug($this->currentSchema->getDebug());
            $this->currentSchema->clearDebug();
        } else {
            // position in the total number of elements, starting from 0
            $pos = $this->position++;
            $depth = $this->depth++;
            // set self as current value for this depth
            $this->depth_array[$depth] = $pos;
            $this->message[$pos] = array('cdata' => '');
            // process attributes
            if (count($attrs) > 0) {
                // register namespace declarations
                foreach ($attrs as $k => $v) {
                    if (preg_match('/^xmlns/', $k)) {
                        if ($ns_prefix = substr(strrchr($k, ':'), 1)) {
                            $this->namespaces[$ns_prefix] = $v;
                        } else {
                            $this->namespaces['ns' . (count($this->namespaces) + 1)] = $v;
                        }
                        if ($v == 'http://www.w3.org/2001/XMLSchema' || $v == 'http://www.w3.org/1999/XMLSchema' || $v == 'http://www.w3.org/2000/10/XMLSchema') {
                            $this->XMLSchemaVersion = $v;
                            $this->namespaces['xsi'] = $v . '-instance';
                        }
                    }
                }
                // expand each attribute prefix to its namespace
                foreach ($attrs as $k => $v) {
                    $k = strpos($k, ':') ? $this->expandQname($k) : $k;
                    if ($k != 'location' && $k != 'soapAction' && $k != 'namespace') {
                        $v = strpos($v, ':') ? $this->expandQname($v) : $v;
                    }
                    $eAttrs[$k] = $v;
                }
                $attrs = $eAttrs;
            } else {
                $attrs = array();
            }
		// Set default prefix and namespace
		// to prevent error Undefined variable $prefix and $namespace if (preg_match('/:/', $name)) return 0 or FALSE
		$prefix = '';
		$namespace = '';
            // get element prefix, namespace and name
            if (preg_match('/:/', $name)) {
                // get ns prefix
                $prefix = substr($name, 0, strpos($name, ':'));
                // get ns
                $namespace = isset($this->namespaces[$prefix]) ? $this->namespaces[$prefix] : '';
                // get unqualified name
                $name = substr(strstr($name, ':'), 1);
            }
            // process attributes, expanding any prefixes to namespaces
            // find status, register data
            switch ($this->status) {
                case 'message':
                    if ($name == 'part') {
                        if (isset($attrs['type'])) {
                            $this->debug("msg " . $this->currentMessage . ": found part (with type) $attrs[name]: " . implode(',', $attrs));
                            $this->messages[$this->currentMessage][$attrs['name']] = $attrs['type'];
                        }
                        if (isset($attrs['element'])) {
                            $this->debug("msg " . $this->currentMessage . ": found part (with element) $attrs[name]: " . implode(',', $attrs));
                            $this->messages[$this->currentMessage][$attrs['name']] = $attrs['element'] . '^';
                        }
                    }
                    break;
                case 'portType':
                    switch ($name) {
                        case 'operation':
                            $this->currentPortOperation = $attrs['name'];
                            $this->debug("portType $this->currentPortType operation: $this->currentPortOperation");
                            if (isset($attrs['parameterOrder'])) {
                                $this->portTypes[$this->currentPortType][$attrs['name']]['parameterOrder'] = $attrs['parameterOrder'];
                            }
                            break;
                        case 'documentation':
                            $this->documentation = true;
                            break;
                        // merge input/output data
                        default:
                            $m = isset($attrs['message']) ? $this->getLocalPart($attrs['message']) : '';
                            $this->portTypes[$this->currentPortType][$this->currentPortOperation][$name]['message'] = $m;
                            break;
                    }
                    break;
                case 'binding':
                    switch ($name) {
                        case 'binding':
                            // get ns prefix
                            if (isset($attrs['style'])) {
                                $this->bindings[$this->currentBinding]['prefix'] = $prefix;
                            }
                            $this->bindings[$this->currentBinding] = array_merge($this->bindings[$this->currentBinding], $attrs);
                            break;
                        case 'header':
                            $this->bindings[$this->currentBinding]['operations'][$this->currentOperation][$this->opStatus]['headers'][] = $attrs;
                            break;
                        case 'operation':
                            if (isset($attrs['soapAction'])) {
                                $this->bindings[$this->currentBinding]['operations'][$this->currentOperation]['soapAction'] = $attrs['soapAction'];
                            }
                            if (isset($attrs['style'])) {
                                $this->bindings[$this->currentBinding]['operations'][$this->currentOperation]['style'] = $attrs['style'];
                            }
                            if (isset($attrs['name'])) {
                                $this->currentOperation = $attrs['name'];
                                $this->debug("current binding operation: $this->currentOperation");
                                $this->bindings[$this->currentBinding]['operations'][$this->currentOperation]['name'] = $attrs['name'];
                                $this->bindings[$this->currentBinding]['operations'][$this->currentOperation]['binding'] = $this->currentBinding;
                                $this->bindings[$this->currentBinding]['operations'][$this->currentOperation]['endpoint'] = isset($this->bindings[$this->currentBinding]['endpoint']) ? $this->bindings[$this->currentBinding]['endpoint'] : '';
                            }
                            break;
                        case 'input':
                            $this->opStatus = 'input';
                            break;
                        case 'output':
                            $this->opStatus = 'output';
                            break;
                        case 'body':
                            if (isset($this->bindings[$this->currentBinding]['operations'][$this->currentOperation][$this->opStatus])) {
                                $this->bindings[$this->currentBinding]['operations'][$this->currentOperation][$this->opStatus] = array_merge($this->bindings[$this->currentBinding]['operations'][$this->currentOperation][$this->opStatus], $attrs);
                            } else {
                                $this->bindings[$this->currentBinding]['operations'][$this->currentOperation][$this->opStatus] = $attrs;
                            }
                            break;
                    }
                    break;
                case 'service':
                    switch ($name) {
                        case 'port':
                            $this->currentPort = $attrs['name'];
                            $this->debug('current port: ' . $this->currentPort);
                            $this->ports[$this->currentPort]['binding'] = $this->getLocalPart($attrs['binding']);

                            break;
                        case 'address':
                            $this->ports[$this->currentPort]['location'] = $attrs['location'];
                            $this->ports[$this->currentPort]['bindingType'] = $namespace;
                            $this->bindings[$this->ports[$this->currentPort]['binding']]['bindingType'] = $namespace;
                            $this->bindings[$this->ports[$this->currentPort]['binding']]['endpoint'] = $attrs['location'];
                            break;
                    }
                    break;
            }
            // set status
            switch ($name) {
                case 'import':
                    if (isset($attrs['location'])) {
                        $this->import[$attrs['namespace']][] = array('location' => $attrs['location'], 'loaded' => false);
                        $this->debug('parsing import ' . $attrs['namespace'] . ' - ' . $attrs['location'] . ' (' . count($this->import[$attrs['namespace']]) . ')');
                    } else {
                        $this->import[$attrs['namespace']][] = array('location' => '', 'loaded' => true);
                        if (!$this->getPrefixFromNamespace($attrs['namespace'])) {
                            $this->namespaces['ns' . (count($this->namespaces) + 1)] = $attrs['namespace'];
                        }
                        $this->debug('parsing import ' . $attrs['namespace'] . ' - [no location] (' . count($this->import[$attrs['namespace']]) . ')');
                    }
                    break;
                //wait for schema
                //case 'types':
                //	$this->status = 'schema';
                //	break;
                case 'message':
                    $this->status = 'message';
                    $this->messages[$attrs['name']] = array();
                    $this->currentMessage = $attrs['name'];
                    break;
                case 'portType':
                    $this->status = 'portType';
                    $this->portTypes[$attrs['name']] = array();
                    $this->currentPortType = $attrs['name'];
                    break;
                case "binding":
                    if (isset($attrs['name'])) {
                        // get binding name
                        if (strpos($attrs['name'], ':')) {
                            $this->currentBinding = $this->getLocalPart($attrs['name']);
                        } else {
                            $this->currentBinding = $attrs['name'];
                        }
                        $this->status = 'binding';
                        $this->bindings[$this->currentBinding]['portType'] = $this->getLocalPart($attrs['type']);
                        $this->debug("current binding: $this->currentBinding of portType: " . $attrs['type']);
                    }
                    break;
                case 'service':
                    $this->serviceName = $attrs['name'];
                    $this->status = 'service';
                    $this->debug('current service: ' . $this->serviceName);
                    break;
                case 'definitions':
                    foreach ($attrs as $name => $value) {
                        $this->wsdl_info[$name] = $value;
                    }
                    break;
            }
        }
    }

    /**
     * end-element handler
     *
     * @param string $parser XML parser object
     * @param string $name element name
     * @access private
     */
    function end_element($parser, $name)
    {
        // unset schema status
        if (/*preg_match('/types$/', $name) ||*/
        preg_match('/schema$/', $name)
        ) {
            $this->status = "";
            $this->appendDebug($this->currentSchema->getDebug());
            $this->currentSchema->clearDebug();
            $this->schemas[$this->currentSchema->schemaTargetNamespace][] = $this->currentSchema;
            $this->debug('Parsing WSDL schema done');
        }
        if ($this->status == 'schema') {
            $this->currentSchema->schemaEndElement($parser, $name);
        } else {
            // bring depth down a notch
            $this->depth--;
        }
        // end documentation
        if ($this->documentation) {
            //TODO: track the node to which documentation should be assigned; it can be a part, message, etc.
            //$this->portTypes[$this->currentPortType][$this->currentPortOperation]['documentation'] = $this->documentation;
            $this->documentation = false;
        }
    }

    /**
     * element content handler
     *
     * @param string $parser XML parser object
     * @param string $data element content
     * @access private
     */
    function character_data($parser, $data)
    {
        $pos = isset($this->depth_array[$this->depth]) ? $this->depth_array[$this->depth] : 0;
        if (isset($this->message[$pos]['cdata'])) {
            $this->message[$pos]['cdata'] .= $data;
        }
        if ($this->documentation) {
            $this->documentation .= $data;
        }
    }

    /**
     * if authenticating, set user credentials here
     *
     * @param    string $username
     * @param    string $password
     * @param    string $authtype (basic|digest|certificate|ntlm)
     * @param    array $certRequest (keys must be cainfofile (optional), sslcertfile, sslkeyfile, passphrase, certpassword (optional), verifypeer (optional), verifyhost (optional): see corresponding options in cURL docs)
     * @access   public
     */
    function setCredentials($username, $password, $authtype = 'basic', $certRequest = array())
    {
        $this->debug("setCredentials username=$username authtype=$authtype certRequest=");
        $this->appendDebug($this->varDump($certRequest));
        $this->username = $username;
        $this->password = $password;
        $this->authtype = $authtype;
        $this->certRequest = $certRequest;
    }

    function getBindingData($binding)
    {
        if (is_array($this->bindings[$binding])) {
            return $this->bindings[$binding];
        }
    }

    /**
     * returns an assoc array of operation names => operation data
     *
     * @param string $portName WSDL port name
     * @param string $bindingType eg: soap, smtp, dime (only soap and soap12 are currently supported)
     * @return array
     * @access public
     */
    function getOperations($portName = '', $bindingType = 'soap')
    {
        $ops = array();
        if ($bindingType == 'soap') {
            $bindingType = 'http://schemas.xmlsoap.org/wsdl/soap/';
        } elseif ($bindingType == 'soap12') {
            $bindingType = 'http://schemas.xmlsoap.org/wsdl/soap12/';
        } else {
            $this->debug("getOperations bindingType $bindingType may not be supported");
        }
        $this->debug("getOperations for port '$portName' bindingType $bindingType");
        // loop thru ports
        foreach ($this->ports as $port => $portData) {
            $this->debug("getOperations checking port $port bindingType " . $portData['bindingType']);
            if ($portName == '' || $port == $portName) {
                // binding type of port matches parameter
                if ($portData['bindingType'] == $bindingType) {
                    $this->debug("getOperations found port $port bindingType $bindingType");
                    //$this->debug("port data: " . $this->varDump($portData));
                    //$this->debug("bindings: " . $this->varDump($this->bindings[ $portData['binding'] ]));
                    // merge bindings
                    if (isset($this->bindings[$portData['binding']]['operations'])) {
                        $ops = array_merge($ops, $this->bindings[$portData['binding']]['operations']);
                    }
                }
            }
        }
        if (count($ops) == 0) {
            $this->debug("getOperations found no operations for port '$portName' bindingType $bindingType");
        }
        return $ops;
    }

    /**
     * returns an associative array of data necessary for calling an operation
     *
     * @param string $operation name of operation
     * @param string $bindingType type of binding eg: soap, soap12
     * @return array
     * @access public
     */
    function getOperationData($operation, $bindingType = 'soap')
    {
        if ($bindingType == 'soap') {
            $bindingType = 'http://schemas.xmlsoap.org/wsdl/soap/';
        } elseif ($bindingType == 'soap12') {
            $bindingType = 'http://schemas.xmlsoap.org/wsdl/soap12/';
        }
        // loop thru ports
        foreach ($this->ports as $port => $portData) {
            // binding type of port matches parameter
            if ($portData['bindingType'] == $bindingType) {
                // get binding
                //foreach($this->bindings[ $portData['binding'] ]['operations'] as $bOperation => $opData) {
                foreach (array_keys($this->bindings[$portData['binding']]['operations']) as $bOperation) {
                    // note that we could/should also check the namespace here
                    if ($operation == $bOperation) {
                        $opData = $this->bindings[$portData['binding']]['operations'][$operation];
                        return $opData;
                    }
                }
            }
        }
    }

    /**
     * returns an associative array of data necessary for calling an operation
     *
     * @param string $soapAction soapAction for operation
     * @param string $bindingType type of binding eg: soap, soap12
     * @return array
     * @access public
     */
    function getOperationDataForSoapAction($soapAction, $bindingType = 'soap')
    {
        if ($bindingType == 'soap') {
            $bindingType = 'http://schemas.xmlsoap.org/wsdl/soap/';
        } elseif ($bindingType == 'soap12') {
            $bindingType = 'http://schemas.xmlsoap.org/wsdl/soap12/';
        }
        // loop thru ports
        foreach ($this->ports as $port => $portData) {
            // binding type of port matches parameter
            if ($portData['bindingType'] == $bindingType) {
                // loop through operations for the binding
                foreach ($this->bindings[$portData['binding']]['operations'] as $bOperation => $opData) {
                    if ($opData['soapAction'] == $soapAction) {
                        return $opData;
                    }
                }
            }
        }
    }

    /**
     * returns an array of information about a given type
     * returns false if no type exists by the given name
     *
     *     typeDef = array(
     *     'elements' => array(), // refs to elements array
     *    'restrictionBase' => '',
     *    'phpType' => '',
     *    'order' => '(sequence|all)',
     *    'attrs' => array() // refs to attributes array
     *    )
     *
     * @param string $type the type
     * @param string $ns namespace (not prefix) of the type
     * @return mixed
     * @access public
     * @see nusoap_xmlschema
     */
    function getTypeDef($type, $ns)
    {
        $this->debug("in getTypeDef: type=$type, ns=$ns");
        if ((!$ns) && isset($this->namespaces['tns'])) {
            $ns = $this->namespaces['tns'];
            $this->debug("in getTypeDef: type namespace forced to $ns");
        }
        if (!isset($this->schemas[$ns])) {
            foreach ($this->schemas as $ns0 => $schema0) {
                if (strcasecmp($ns, $ns0) == 0) {
                    $this->debug("in getTypeDef: replacing schema namespace $ns with $ns0");
                    $ns = $ns0;
                    break;
                }
            }
        }
        if (isset($this->schemas[$ns])) {
            $this->debug("in getTypeDef: have schema for namespace $ns");
            for ($i = 0; $i < count($this->schemas[$ns]); $i++) {
                $xs = &$this->schemas[$ns][$i];
                $t = $xs->getTypeDef($type);
                $this->appendDebug($xs->getDebug());
                $xs->clearDebug();
                if ($t) {
                    $this->debug("in getTypeDef: found type $type");
                    if (!isset($t['phpType'])) {
                        // get info for type to tack onto the element
                        $uqType = substr($t['type'], strrpos($t['type'], ':') + 1);
                        $ns = substr($t['type'], 0, strrpos($t['type'], ':'));
                        $etype = $this->getTypeDef($uqType, $ns);
                        if ($etype) {
                            $this->debug("found type for [element] $type:");
                            $this->debug($this->varDump($etype));
                            if (isset($etype['phpType'])) {
                                $t['phpType'] = $etype['phpType'];
                            }
                            if (isset($etype['elements'])) {
                                $t['elements'] = $etype['elements'];
                            }
                            if (isset($etype['attrs'])) {
                                $t['attrs'] = $etype['attrs'];
                            }
                        } else {
                            $this->debug("did not find type for [element] $type");
                        }
                    }
                    return $t;
                }
            }
            $this->debug("in getTypeDef: did not find type $type");
        } else {
            $this->debug("in getTypeDef: do not have schema for namespace $ns");
        }
        return false;
    }

    /**
     * prints html description of services
     *
     * @access private
     */
    function webDescription()
    {
        global $HTTP_SERVER_VARS;

        if (isset($_SERVER)) {
            $PHP_SELF = $_SERVER['PHP_SELF'];
        } elseif (isset($HTTP_SERVER_VARS)) {
            $PHP_SELF = $HTTP_SERVER_VARS['PHP_SELF'];
        } else {
            $this->setError("Neither _SERVER nor HTTP_SERVER_VARS is available");
        }

        $b = '
		<html><head><title>NuSOAP: ' . $this->serviceName . '</title>
		<style type="text/css">
		    body    { font-family: arial; color: #000000; background-color: #ffffff; margin: 0px 0px 0px 0px; }
		    p       { font-family: arial; color: #000000; margin-top: 0px; margin-bottom: 12px; }
		    pre { background-color: silver; padding: 5px; font-family: Courier New; font-size: x-small; color: #000000;}
		    ul      { margin-top: 10px; margin-left: 20px; }
		    li      { list-style-type: none; margin-top: 10px; color: #000000; }
		    .content{
			margin-left: 0px; padding-bottom: 2em; }
		    .nav {
			padding-top: 10px; padding-bottom: 10px; padding-left: 15px; font-size: .70em;
			margin-top: 10px; margin-left: 0px; color: #000000;
			background-color: #ccccff; width: 20%; margin-left: 20px; margin-top: 20px; }
		    .title {
			font-family: arial; font-size: 26px; color: #ffffff;
			background-color: #999999; width: 100%;
			margin-left: 0px; margin-right: 0px;
			padding-top: 10px; padding-bottom: 10px;}
		    .hidden {
			position: absolute; visibility: hidden; z-index: 200; left: 250px; top: 100px;
			font-family: arial; overflow: hidden; width: 600;
			padding: 20px; font-size: 10px; background-color: #999999;
			layer-background-color:#FFFFFF; }
		    a,a:active  { color: charcoal; font-weight: bold; }
		    a:visited   { color: #666666; font-weight: bold; }
		    a:hover     { color: cc3300; font-weight: bold; }
		</style>
		<script language="JavaScript" type="text/javascript">
		<!--
		// POP-UP CAPTIONS...
		function lib_bwcheck(){ //Browsercheck (needed)
		    this.ver=navigator.appVersion
		    this.agent=navigator.userAgent
		    this.dom=document.getElementById?1:0
		    this.opera5=this.agent.indexOf("Opera 5")>-1
		    this.ie5=(this.ver.indexOf("MSIE 5")>-1 && this.dom && !this.opera5)?1:0;
		    this.ie6=(this.ver.indexOf("MSIE 6")>-1 && this.dom && !this.opera5)?1:0;
		    this.ie4=(document.all && !this.dom && !this.opera5)?1:0;
		    this.ie=this.ie4||this.ie5||this.ie6
		    this.mac=this.agent.indexOf("Mac")>-1
		    this.ns6=(this.dom && parseInt(this.ver) >= 5) ?1:0;
		    this.ns4=(document.layers && !this.dom)?1:0;
		    this.bw=(this.ie6 || this.ie5 || this.ie4 || this.ns4 || this.ns6 || this.opera5)
		    return this
		}
		var bw = new lib_bwcheck()
		//Makes crossbrowser object.
		function makeObj(obj){
		    this.evnt=bw.dom? document.getElementById(obj):bw.ie4?document.all[obj]:bw.ns4?document.layers[obj]:0;
		    if(!this.evnt) return false
		    this.css=bw.dom||bw.ie4?this.evnt.style:bw.ns4?this.evnt:0;
		    this.wref=bw.dom||bw.ie4?this.evnt:bw.ns4?this.css.document:0;
		    this.writeIt=b_writeIt;
		    return this
		}
		// A unit of measure that will be added when setting the position of a layer.
		//var px = bw.ns4||window.opera?"":"px";
		function b_writeIt(text){
		    if (bw.ns4){this.wref.write(text);this.wref.close()}
		    else this.wref.innerHTML = text
		}
		//Shows the messages
		var oDesc;
		function popup(divid){
		    if(oDesc = new makeObj(divid)){
			oDesc.css.visibility = "visible"
		    }
		}
		function popout(){ // Hides message
		    if(oDesc) oDesc.css.visibility = "hidden"
		}
		//-->
		</script>
		</head>
		<body>
		<div class=content>
			<br><br>
			<div class=title>' . $this->serviceName . '</div>
			<div class=nav>
				<p>View the <a href="' . $PHP_SELF . '?wsdl">WSDL</a> for the service.
				Click on an operation name to view it&apos;s details.</p>
				<ul>';
        foreach ($this->getOperations() as $op => $data) {
            $b .= "<li><a href='#' onclick=\"popout();popup('$op')\">$op</a></li>";
            // create hidden div
            $b .= "<div id='$op' class='hidden'>
				    <a href='#' onclick='popout()'><font color='#ffffff'>Close</font></a><br><br>";
            foreach ($data as $donnie => $marie) { // loop through opdata
                if ($donnie == 'input' || $donnie == 'output') { // show input/output data
                    $b .= "<font color='white'>" . ucfirst($donnie) . ':</font><br>';
                    foreach ($marie as $captain => $tenille) { // loop through data
                        if ($captain == 'parts') { // loop thru parts
                            $b .= "&nbsp;&nbsp;$captain:<br>";
                            //if(is_array($tenille)){
                            foreach ($tenille as $joanie => $chachi) {
                                $b .= "&nbsp;&nbsp;&nbsp;&nbsp;$joanie: $chachi<br>";
                            }
                            //}
                        } else {
                            $b .= "&nbsp;&nbsp;$captain: $tenille<br>";
                        }
                    }
                } else {
                    $b .= "<font color='white'>" . ucfirst($donnie) . ":</font> $marie<br>";
                }
            }
            $b .= '</div>';
        }
        $b .= '
				<ul>
			</div>
		</div></body></html>';
        return $b;
    }

    /**
     * serialize the parsed wsdl
     *
     * @param mixed $debug whether to put debug=1 in endpoint URL
     * @return string serialization of WSDL
     * @access public
     */
    function serialize($debug = 0)
    {
        $xml = '<?xml version="1.0" encoding="ISO-8859-1"?>';
        $xml .= "\n<definitions";
        foreach ($this->namespaces as $k => $v) {
            $xml .= " xmlns:$k=\"$v\"";
        }
        // 10.9.02 - add poulter fix for wsdl and tns declarations
        if (isset($this->namespaces['wsdl'])) {
            $xml .= " xmlns=\"" . $this->namespaces['wsdl'] . "\"";
        }
        if (isset($this->namespaces['tns'])) {
            $xml .= " targetNamespace=\"" . $this->namespaces['tns'] . "\"";
        }
        $xml .= '>';
        // imports
        if (sizeof($this->import) > 0) {
            foreach ($this->import as $ns => $list) {
                foreach ($list as $ii) {
                    if ($ii['location'] != '') {
                        $xml .= '<import location="' . $ii['location'] . '" namespace="' . $ns . '" />';
                    } else {
                        $xml .= '<import namespace="' . $ns . '" />';
                    }
                }
            }
        }
        // types
        if (count($this->schemas) >= 1) {
            $xml .= "\n<types>\n";
            foreach ($this->schemas as $ns => $list) {
                foreach ($list as $xs) {
                    $xml .= $xs->serializeSchema();
                }
            }
            $xml .= '</types>';
        }
        // messages
        if (count($this->messages) >= 1) {
            foreach ($this->messages as $msgName => $msgParts) {
                $xml .= "\n<message name=\"" . $msgName . '">';
                if (is_array($msgParts)) {
                    foreach ($msgParts as $partName => $partType) {
                        // print 'serializing '.$partType.', sv: '.$this->XMLSchemaVersion.'<br>';
                        if (strpos($partType, ':')) {
                            $typePrefix = $this->getPrefixFromNamespace($this->getPrefix($partType));
                        } elseif (isset($this->typemap[$this->namespaces['xsd']][$partType])) {
                            // print 'checking typemap: '.$this->XMLSchemaVersion.'<br>';
                            $typePrefix = 'xsd';
                        } else {
                            foreach ($this->typemap as $ns => $types) {
                                if (isset($types[$partType])) {
                                    $typePrefix = $this->getPrefixFromNamespace($ns);
                                }
                            }
                            if (!isset($typePrefix)) {
                                die("$partType has no namespace!");
                            }
                        }
                        $ns = $this->getNamespaceFromPrefix($typePrefix);
                        $localPart = $this->getLocalPart($partType);
                        $typeDef = $this->getTypeDef($localPart, $ns);
                        if (isset($typeDef['typeClass']) && $typeDef['typeClass'] == 'element') {
                            $elementortype = 'element';
                            if (substr($localPart, -1) == '^') {
                                $localPart = substr($localPart, 0, -1);
                            }
                        } else {
                            $elementortype = 'type';
                        }
                        $xml .= "\n" . '  <part name="' . $partName . '" ' . $elementortype . '="' . $typePrefix . ':' . $localPart . '" />';
                    }
                }
                $xml .= '</message>';
            }
        }
        // bindings & porttypes
        if (count($this->bindings) >= 1) {
            $binding_xml = '';
            $portType_xml = '';
            foreach ($this->bindings as $bindingName => $attrs) {
                $binding_xml .= "\n<binding name=\"" . $bindingName . '" type="tns:' . $attrs['portType'] . '">';
                $binding_xml .= "\n" . '  <soap:binding style="' . $attrs['style'] . '" transport="' . $attrs['transport'] . '"/>';
                $portType_xml .= "\n<portType name=\"" . $attrs['portType'] . '">';
                foreach ($attrs['operations'] as $opName => $opParts) {
                    $binding_xml .= "\n" . '  <operation name="' . $opName . '">';
                    $binding_xml .= "\n" . '    <soap:operation soapAction="' . $opParts['soapAction'] . '" style="' . $opParts['style'] . '"/>';
                    if (isset($opParts['input']['encodingStyle']) && $opParts['input']['encodingStyle'] != '') {
                        $enc_style = ' encodingStyle="' . $opParts['input']['encodingStyle'] . '"';
                    } else {
                        $enc_style = '';
                    }
                    $binding_xml .= "\n" . '    <input><soap:body use="' . $opParts['input']['use'] . '" namespace="' . $opParts['input']['namespace'] . '"' . $enc_style . '/></input>';
                    if (isset($opParts['output']['encodingStyle']) && $opParts['output']['encodingStyle'] != '') {
                        $enc_style = ' encodingStyle="' . $opParts['output']['encodingStyle'] . '"';
                    } else {
                        $enc_style = '';
                    }
                    $binding_xml .= "\n" . '    <output><soap:body use="' . $opParts['output']['use'] . '" namespace="' . $opParts['output']['namespace'] . '"' . $enc_style . '/></output>';
                    $binding_xml .= "\n" . '  </operation>';
                    $portType_xml .= "\n" . '  <operation name="' . $opParts['name'] . '"';
                    if (isset($opParts['parameterOrder'])) {
                        $portType_xml .= ' parameterOrder="' . $opParts['parameterOrder'] . '"';
                    }
                    $portType_xml .= '>';
                    if (isset($opParts['documentation']) && $opParts['documentation'] != '') {
                        $portType_xml .= "\n" . '    <documentation>' . htmlspecialchars($opParts['documentation']) . '</documentation>';
                    }
                    $portType_xml .= "\n" . '    <input message="tns:' . $opParts['input']['message'] . '"/>';
                    $portType_xml .= "\n" . '    <output message="tns:' . $opParts['output']['message'] . '"/>';
                    $portType_xml .= "\n" . '  </operation>';
                }
                $portType_xml .= "\n" . '</portType>';
                $binding_xml .= "\n" . '</binding>';
            }
            $xml .= $portType_xml . $binding_xml;
        }
        // services
        $xml .= "\n<service name=\"" . $this->serviceName . '">';
        if (count($this->ports) >= 1) {
            foreach ($this->ports as $pName => $attrs) {
                $xml .= "\n" . '  <port name="' . $pName . '" binding="tns:' . $attrs['binding'] . '">';
                $xml .= "\n" . '    <soap:address location="' . $attrs['location'] . ($debug ? '?debug=1' : '') . '"/>';
                $xml .= "\n" . '  </port>';
            }
        }
        $xml .= "\n" . '</service>';
        return $xml . "\n</definitions>";
    }

    /**
     * determine whether a set of parameters are unwrapped
     * when they are expect to be wrapped, Microsoft-style.
     *
     * @param string $type the type (element name) of the wrapper
     * @param array $parameters the parameter values for the SOAP call
     * @return boolean whether they parameters are unwrapped (and should be wrapped)
     * @access private
     */
    function parametersMatchWrapped($type, &$parameters)
    {
        $this->debug("in parametersMatchWrapped type=$type, parameters=");
        $this->appendDebug($this->varDump($parameters));

        // split type into namespace:unqualified-type
        if (strpos($type, ':')) {
            $uqType = substr($type, strrpos($type, ':') + 1);
            $ns = substr($type, 0, strrpos($type, ':'));
            $this->debug("in parametersMatchWrapped: got a prefixed type: $uqType, $ns");
            if ($this->getNamespaceFromPrefix($ns)) {
                $ns = $this->getNamespaceFromPrefix($ns);
                $this->debug("in parametersMatchWrapped: expanded prefixed type: $uqType, $ns");
            }
        } else {
            // TODO: should the type be compared to types in XSD, and the namespace
            // set to XSD if the type matches?
            $this->debug("in parametersMatchWrapped: No namespace for type $type");
            $ns = '';
            $uqType = $type;
        }

        // get the type information
        if (!$typeDef = $this->getTypeDef($uqType, $ns)) {
            $this->debug("in parametersMatchWrapped: $type ($uqType) is not a supported type.");
            return false;
        }
        $this->debug("in parametersMatchWrapped: found typeDef=");
        $this->appendDebug($this->varDump($typeDef));
        if (substr($uqType, -1) == '^') {
            $uqType = substr($uqType, 0, -1);
        }
        $phpType = $typeDef['phpType'];
        $arrayType = (isset($typeDef['arrayType']) ? $typeDef['arrayType'] : '');
        $this->debug("in parametersMatchWrapped: uqType: $uqType, ns: $ns, phptype: $phpType, arrayType: $arrayType");

        // we expect a complexType or element of complexType
        if ($phpType != 'struct') {
            $this->debug("in parametersMatchWrapped: not a struct");
            return false;
        }

        // see whether the parameter names match the elements
        if (isset($typeDef['elements']) && is_array($typeDef['elements'])) {
            $elements = 0;
            $matches = 0;
            foreach ($typeDef['elements'] as $name => $attrs) {
                if (isset($parameters[$name])) {
                    $this->debug("in parametersMatchWrapped: have parameter named $name");
                    $matches++;
                } else {
                    $this->debug("in parametersMatchWrapped: do not have parameter named $name");
                }
                $elements++;
            }

            $this->debug("in parametersMatchWrapped: $matches parameter names match $elements wrapped parameter names");
            if ($matches == 0) {
                return false;
            }
            return true;
        }

        // since there are no elements for the type, if the user passed no
        // parameters, the parameters match wrapped.
        $this->debug("in parametersMatchWrapped: no elements type $ns:$uqType");
        return count($parameters) == 0;
    }

    /**
     * serialize PHP values according to a WSDL message definition
     * contrary to the method name, this is not limited to RPC
     *
     * TODO
     * - multi-ref serialization
     * - validate PHP values against type definitions, return errors if invalid
     *
     * @param string $operation operation name
     * @param string $direction (input|output)
     * @param mixed $parameters parameter value(s)
     * @param string $bindingType (soap|soap12)
     * @return mixed parameters serialized as XML or false on error (e.g. operation not found)
     * @access public
     */
    function serializeRPCParameters($operation, $direction, $parameters, $bindingType = 'soap')
    {
        $this->debug("in serializeRPCParameters: operation=$operation, direction=$direction, XMLSchemaVersion=$this->XMLSchemaVersion, bindingType=$bindingType");
        $this->appendDebug('parameters=' . $this->varDump($parameters));

        if ($direction != 'input' && $direction != 'output') {
            $this->debug('The value of the \$direction argument needs to be either "input" or "output"');
            $this->setError('The value of the \$direction argument needs to be either "input" or "output"');
            return false;
        }
        if (!$opData = $this->getOperationData($operation, $bindingType)) {
            $this->debug('Unable to retrieve WSDL data for operation: ' . $operation . ' bindingType: ' . $bindingType);
            $this->setError('Unable to retrieve WSDL data for operation: ' . $operation . ' bindingType: ' . $bindingType);
            return false;
        }
        $this->debug('in serializeRPCParameters: opData:');
        $this->appendDebug($this->varDump($opData));

        // Get encoding style for output and set to current
        $encodingStyle = 'http://schemas.xmlsoap.org/soap/encoding/';
        if (($direction == 'input') && isset($opData['output']['encodingStyle']) && ($opData['output']['encodingStyle'] != $encodingStyle)) {
            $encodingStyle = $opData['output']['encodingStyle'];
            $enc_style = $encodingStyle;
        }

        // set input params
        $xml = '';
        if (isset($opData[$direction]['parts']) && sizeof($opData[$direction]['parts']) > 0) {
            $parts = &$opData[$direction]['parts'];
            $part_count = sizeof($parts);
            $style = $opData['style'];
            $use = $opData[$direction]['use'];
            $this->debug("have $part_count part(s) to serialize using $style/$use");
            if (is_array($parameters)) {
                $parametersArrayType = $this->isArraySimpleOrStruct($parameters);
                $parameter_count = count($parameters);
                $this->debug("have $parameter_count parameter(s) provided as $parametersArrayType to serialize");
                // check for Microsoft-style wrapped parameters
                if ($style == 'document' && $use == 'literal' && $part_count == 1 && isset($parts['parameters'])) {
                    $this->debug('check whether the caller has wrapped the parameters');
                    if ($direction == 'output' && $parametersArrayType == 'arraySimple' && $parameter_count == 1) {
                        // TODO: consider checking here for double-wrapping, when
                        // service function wraps, then NuSOAP wraps again
                        $this->debug("change simple array to associative with 'parameters' element");
                        $parameters['parameters'] = $parameters[0];
                        unset($parameters[0]);
                    }
                    if (($parametersArrayType == 'arrayStruct' || $parameter_count == 0) && !isset($parameters['parameters'])) {
                        $this->debug('check whether caller\'s parameters match the wrapped ones');
                        if ($this->parametersMatchWrapped($parts['parameters'], $parameters)) {
                            $this->debug('wrap the parameters for the caller');
                            $parameters = array('parameters' => $parameters);
                            $parameter_count = 1;
                        }
                    }
                }
                foreach ($parts as $name => $type) {
                    $this->debug("serializing part $name of type $type");
                    // Track encoding style
                    if (isset($opData[$direction]['encodingStyle']) && $encodingStyle != $opData[$direction]['encodingStyle']) {
                        $encodingStyle = $opData[$direction]['encodingStyle'];
                        $enc_style = $encodingStyle;
                    } else {
                        $enc_style = false;
                    }
                    // NOTE: add error handling here
                    // if serializeType returns false, then catch global error and fault
                    if ($parametersArrayType == 'arraySimple') {
                        $p = array_shift($parameters);
                        $this->debug('calling serializeType w/indexed param');
                        $xml .= $this->serializeType($name, $type, $p, $use, $enc_style);
                    } elseif (isset($parameters[$name])) {
                        $this->debug('calling serializeType w/named param');
                        $xml .= $this->serializeType($name, $type, $parameters[$name], $use, $enc_style);
                    } else {
                        // TODO: only send nillable
                        $this->debug('calling serializeType w/null param');
                        $xml .= $this->serializeType($name, $type, null, $use, $enc_style);
                    }
                }
            } else {
                $this->debug('no parameters passed.');
            }
        }
        $this->debug("serializeRPCParameters returning: $xml");
        return $xml;
    }

    /**
     * serialize a PHP value according to a WSDL message definition
     *
     * TODO
     * - multi-ref serialization
     * - validate PHP values against type definitions, return errors if invalid
     *
     * @param string $operation operation name
     * @param string $direction (input|output)
     * @param mixed $parameters parameter value(s)
     * @return mixed parameters serialized as XML or false on error (e.g. operation not found)
     * @access public
     * @deprecated
     */
    function serializeParameters($operation, $direction, $parameters)
    {
        $this->debug("in serializeParameters: operation=$operation, direction=$direction, XMLSchemaVersion=$this->XMLSchemaVersion");
        $this->appendDebug('parameters=' . $this->varDump($parameters));

        if ($direction != 'input' && $direction != 'output') {
            $this->debug('The value of the \$direction argument needs to be either "input" or "output"');
            $this->setError('The value of the \$direction argument needs to be either "input" or "output"');
            return false;
        }
        if (!$opData = $this->getOperationData($operation)) {
            $this->debug('Unable to retrieve WSDL data for operation: ' . $operation);
            $this->setError('Unable to retrieve WSDL data for operation: ' . $operation);
            return false;
        }
        $this->debug('opData:');
        $this->appendDebug($this->varDump($opData));

        // Get encoding style for output and set to current
        $encodingStyle = 'http://schemas.xmlsoap.org/soap/encoding/';
        if (($direction == 'input') && isset($opData['output']['encodingStyle']) && ($opData['output']['encodingStyle'] != $encodingStyle)) {
            $encodingStyle = $opData['output']['encodingStyle'];
            $enc_style = $encodingStyle;
        }

        // set input params
        $xml = '';
        if (isset($opData[$direction]['parts']) && sizeof($opData[$direction]['parts']) > 0) {

            $use = $opData[$direction]['use'];
            $this->debug("use=$use");
            $this->debug('got ' . count($opData[$direction]['parts']) . ' part(s)');
            if (is_array($parameters)) {
                $parametersArrayType = $this->isArraySimpleOrStruct($parameters);
                $this->debug('have ' . $parametersArrayType . ' parameters');
                foreach ($opData[$direction]['parts'] as $name => $type) {
                    $this->debug('serializing part "' . $name . '" of type "' . $type . '"');
                    // Track encoding style
                    if (isset($opData[$direction]['encodingStyle']) && $encodingStyle != $opData[$direction]['encodingStyle']) {
                        $encodingStyle = $opData[$direction]['encodingStyle'];
                        $enc_style = $encodingStyle;
                    } else {
                        $enc_style = false;
                    }
                    // NOTE: add error handling here
                    // if serializeType returns false, then catch global error and fault
                    if ($parametersArrayType == 'arraySimple') {
                        $p = array_shift($parameters);
                        $this->debug('calling serializeType w/indexed param');
                        $xml .= $this->serializeType($name, $type, $p, $use, $enc_style);
                    } elseif (isset($parameters[$name])) {
                        $this->debug('calling serializeType w/named param');
                        $xml .= $this->serializeType($name, $type, $parameters[$name], $use, $enc_style);
                    } else {
                        // TODO: only send nillable
                        $this->debug('calling serializeType w/null param');
                        $xml .= $this->serializeType($name, $type, null, $use, $enc_style);
                    }
                }
            } else {
                $this->debug('no parameters passed.');
            }
        }
        $this->debug("serializeParameters returning: $xml");
        return $xml;
    }

    /**
     * serializes a PHP value according a given type definition
     *
     * @param string $name name of value (part or element)
     * @param string $type XML schema type of value (type or element)
     * @param mixed $value a native PHP value (parameter value)
     * @param string $use use for part (encoded|literal)
     * @param string $encodingStyle SOAP encoding style for the value (if different than the enclosing style)
     * @param boolean $unqualified a kludge for what should be XML namespace form handling
     * @return string value serialized as an XML string
     * @access private
     */
    function serializeType($name, $type, $value, $use = 'encoded', $encodingStyle = false, $unqualified = false)
    {
        $this->debug("in serializeType: name=$name, type=$type, use=$use, encodingStyle=$encodingStyle, unqualified=" . ($unqualified ? "unqualified" : "qualified"));
        $this->appendDebug("value=" . $this->varDump($value));
        if ($use == 'encoded' && $encodingStyle) {
            $encodingStyle = ' SOAP-ENV:encodingStyle="' . $encodingStyle . '"';
        }

        // if a soapval has been supplied, let its type override the WSDL
        if (is_object($value) && get_class($value) == 'soapval') {
            if ($value->type_ns) {
                $type = $value->type_ns . ':' . $value->type;
                $forceType = true;
                $this->debug("in serializeType: soapval overrides type to $type");
            } elseif ($value->type) {
                $type = $value->type;
                $forceType = true;
                $this->debug("in serializeType: soapval overrides type to $type");
            } else {
                $forceType = false;
                $this->debug("in serializeType: soapval does not override type");
            }
            $attrs = $value->attributes;
            $value = $value->value;
            $this->debug("in serializeType: soapval overrides value to $value");
            if ($attrs) {
                if (!is_array($value)) {
                    $value['!'] = $value;
                }
                foreach ($attrs as $n => $v) {
                    $value['!' . $n] = $v;
                }
                $this->debug("in serializeType: soapval provides attributes");
            }
        } else {
            $forceType = false;
        }

        $xml = '';
        if (strpos($type, ':')) {
            $uqType = substr($type, strrpos($type, ':') + 1);
            $ns = substr($type, 0, strrpos($type, ':'));
            $this->debug("in serializeType: got a prefixed type: $uqType, $ns");
            if ($this->getNamespaceFromPrefix($ns)) {
                $ns = $this->getNamespaceFromPrefix($ns);
                $this->debug("in serializeType: expanded prefixed type: $uqType, $ns");
            }

            if ($ns == $this->XMLSchemaVersion || $ns == 'http://schemas.xmlsoap.org/soap/encoding/') {
                $this->debug('in serializeType: type namespace indicates XML Schema or SOAP Encoding type');
                if ($unqualified && $use == 'literal') {
                    $elementNS = " xmlns=\"\"";
                } else {
                    $elementNS = '';
                }
                if (is_null($value)) {
                    if ($use == 'literal') {
                        // TODO: depends on minOccurs
                        $xml = "<$name$elementNS/>";
                    } else {
                        // TODO: depends on nillable, which should be checked before calling this method
                        $xml = "<$name$elementNS xsi:nil=\"true\" xsi:type=\"" . $this->getPrefixFromNamespace($ns) . ":$uqType\"/>";
                    }
                    $this->debug("in serializeType: returning: $xml");
                    return $xml;
                }
                if ($uqType == 'Array') {
                    // JBoss/Axis does this sometimes
                    return $this->serialize_val($value, $name, false, false, false, false, $use);
                }
                if ($uqType == 'boolean') {
                    if ((is_string($value) && $value == 'false') || (!$value)) {
                        $value = 'false';
                    } else {
                        $value = 'true';
                    }
                }
                if ($uqType == 'string' && gettype($value) == 'string') {
                    $value = $this->expandEntities($value);
                }
                if (($uqType == 'long' || $uqType == 'unsignedLong') && gettype($value) == 'double') {
                    $value = sprintf("%.0lf", $value);
                }
                // it's a scalar
                // TODO: what about null/nil values?
                // check type isn't a custom type extending xmlschema namespace
                if (!$this->getTypeDef($uqType, $ns)) {
                    if ($use == 'literal') {
                        if ($forceType) {
                            $xml = "<$name$elementNS xsi:type=\"" . $this->getPrefixFromNamespace($ns) . ":$uqType\">$value</$name>";
                        } else {
                            $xml = "<$name$elementNS>$value</$name>";
                        }
                    } else {
                        $xml = "<$name$elementNS xsi:type=\"" . $this->getPrefixFromNamespace($ns) . ":$uqType\"$encodingStyle>$value</$name>";
                    }
                    $this->debug("in serializeType: returning: $xml");
                    return $xml;
                }
                $this->debug('custom type extends XML Schema or SOAP Encoding namespace (yuck)');
            } elseif ($ns == 'http://xml.apache.org/xml-soap') {
                $this->debug('in serializeType: appears to be Apache SOAP type');
                if ($uqType == 'Map') {
                    $tt_prefix = $this->getPrefixFromNamespace('http://xml.apache.org/xml-soap');
                    if (!$tt_prefix) {
                        $this->debug('in serializeType: Add namespace for Apache SOAP type');
                        $tt_prefix = 'ns' . rand(1000, 9999);
                        $this->namespaces[$tt_prefix] = 'http://xml.apache.org/xml-soap';
                        // force this to be added to usedNamespaces
                        $tt_prefix = $this->getPrefixFromNamespace('http://xml.apache.org/xml-soap');
                    }
                    $contents = '';
                    foreach ($value as $k => $v) {
                        $this->debug("serializing map element: key $k, value $v");
                        $contents .= '<item>';
                        $contents .= $this->serialize_val($k, 'key', false, false, false, false, $use);
                        $contents .= $this->serialize_val($v, 'value', false, false, false, false, $use);
                        $contents .= '</item>';
                    }
                    if ($use == 'literal') {
                        if ($forceType) {
                            $xml = "<$name xsi:type=\"" . $tt_prefix . ":$uqType\">$contents</$name>";
                        } else {
                            $xml = "<$name>$contents</$name>";
                        }
                    } else {
                        $xml = "<$name xsi:type=\"" . $tt_prefix . ":$uqType\"$encodingStyle>$contents</$name>";
                    }
                    $this->debug("in serializeType: returning: $xml");
                    return $xml;
                }
                $this->debug('in serializeType: Apache SOAP type, but only support Map');
            }
        } else {
            // TODO: should the type be compared to types in XSD, and the namespace
            // set to XSD if the type matches?
            $this->debug("in serializeType: No namespace for type $type");
            $ns = '';
            $uqType = $type;
        }
        if (!$typeDef = $this->getTypeDef($uqType, $ns)) {
            $this->setError("$type ($uqType) is not a supported type.");
            $this->debug("in serializeType: $type ($uqType) is not a supported type.");
            return false;
        } else {
            $this->debug("in serializeType: found typeDef");
            $this->appendDebug('typeDef=' . $this->varDump($typeDef));
            if (substr($uqType, -1) == '^') {
                $uqType = substr($uqType, 0, -1);
            }
        }
        if (!isset($typeDef['phpType'])) {
            $this->setError("$type ($uqType) has no phpType.");
            $this->debug("in serializeType: $type ($uqType) has no phpType.");
            return false;
        }
        $phpType = $typeDef['phpType'];
        $this->debug("in serializeType: uqType: $uqType, ns: $ns, phptype: $phpType, arrayType: " . (isset($typeDef['arrayType']) ? $typeDef['arrayType'] : ''));
        // if php type == struct, map value to the <all> element names
        if ($phpType == 'struct') {
            if (isset($typeDef['typeClass']) && $typeDef['typeClass'] == 'element') {
                $elementName = $uqType;
                if (isset($typeDef['form']) && ($typeDef['form'] == 'qualified')) {
                    $elementNS = " xmlns=\"$ns\"";
                } else {
                    $elementNS = " xmlns=\"\"";
                }
            } else {
                $elementName = $name;
                if ($unqualified) {
                    $elementNS = " xmlns=\"\"";
                } else {
                    $elementNS = '';
                }
            }
            if (is_null($value)) {
                if ($use == 'literal') {
                    // TODO: depends on minOccurs and nillable
                    $xml = "<$elementName$elementNS/>";
                } else {
                    $xml = "<$elementName$elementNS xsi:nil=\"true\" xsi:type=\"" . $this->getPrefixFromNamespace($ns) . ":$uqType\"/>";
                }
                $this->debug("in serializeType: returning: $xml");
                return $xml;
            }
            if (is_object($value)) {
                $value = get_object_vars($value);
            }
            if (is_array($value)) {
                $elementAttrs = $this->serializeComplexTypeAttributes($typeDef, $value, $ns, $uqType);
                if ($use == 'literal') {
                    if ($forceType) {
                        $xml = "<$elementName$elementNS$elementAttrs xsi:type=\"" . $this->getPrefixFromNamespace($ns) . ":$uqType\">";
                    } else {
                        $xml = "<$elementName$elementNS$elementAttrs>";
                    }
                } else {
                    $xml = "<$elementName$elementNS$elementAttrs xsi:type=\"" . $this->getPrefixFromNamespace($ns) . ":$uqType\"$encodingStyle>";
                }

                if (isset($typeDef['simpleContent']) && $typeDef['simpleContent'] == 'true') {
                    if (isset($value['!'])) {
                        $xml .= $value['!'];
                        $this->debug("in serializeType: serialized simpleContent for type $type");
                    } else {
                        $this->debug("in serializeType: no simpleContent to serialize for type $type");
                    }
                } else {
                    // complexContent
                    $xml .= $this->serializeComplexTypeElements($typeDef, $value, $ns, $uqType, $use, $encodingStyle);
                }
                $xml .= "</$elementName>";
            } else {
                $this->debug("in serializeType: phpType is struct, but value is not an array");
                $this->setError("phpType is struct, but value is not an array: see debug output for details");
                $xml = '';
            }
        } elseif ($phpType == 'array') {
            if (isset($typeDef['form']) && ($typeDef['form'] == 'qualified')) {
                $elementNS = " xmlns=\"$ns\"";
            } else {
                if ($unqualified) {
                    $elementNS = " xmlns=\"\"";
                } else {
                    $elementNS = '';
                }
            }
            if (is_null($value)) {
                if ($use == 'literal') {
                    // TODO: depends on minOccurs
                    $xml = "<$name$elementNS/>";
                } else {
                    $xml = "<$name$elementNS xsi:nil=\"true\" xsi:type=\"" .
                        $this->getPrefixFromNamespace('http://schemas.xmlsoap.org/soap/encoding/') .
                        ":Array\" " .
                        $this->getPrefixFromNamespace('http://schemas.xmlsoap.org/soap/encoding/') .
                        ':arrayType="' .
                        $this->getPrefixFromNamespace($this->getPrefix($typeDef['arrayType'])) .
                        ':' .
                        $this->getLocalPart($typeDef['arrayType']) . "[0]\"/>";
                }
                $this->debug("in serializeType: returning: $xml");
                return $xml;
            }
            if (isset($typeDef['multidimensional'])) {
                $nv = array();
                foreach ($value as $v) {
                    $cols = ',' . sizeof($v);
                    $nv = array_merge($nv, $v);
                }
                $value = $nv;
            } else {
                $cols = '';
            }
            if (is_array($value) && sizeof($value) >= 1) {
                $rows = sizeof($value);
                $contents = '';
                foreach ($value as $k => $v) {
                    //$this->debug breaks when serializing ArrayOfComplexType
                    //Error: Object of class [COMPLEX-TYPE] could not be converted to string
                    //$this->debug("serializing array element: $k, " . (is_array($v) ? "array" : $v) . " of type: $typeDef[arrayType]");
                    //if (strpos($typeDef['arrayType'], ':') ) {
                    if (!in_array($typeDef['arrayType'], $this->typemap['http://www.w3.org/2001/XMLSchema'])) {
                        $contents .= $this->serializeType('item', $typeDef['arrayType'], $v, $use);
                    } else {
                        $contents .= $this->serialize_val($v, 'item', $typeDef['arrayType'], null, $this->XMLSchemaVersion, false, $use);
                    }
                }
            } else {
                $rows = 0;
                $contents = null;
            }
            // TODO: for now, an empty value will be serialized as a zero element
            // array.  Revisit this when coding the handling of null/nil values.
            if ($use == 'literal') {
                $xml = "<$name$elementNS>"
                    . $contents
                    . "</$name>";
            } else {
                $xml = "<$name$elementNS xsi:type=\"" . $this->getPrefixFromNamespace('http://schemas.xmlsoap.org/soap/encoding/') . ':Array" ' .
                    $this->getPrefixFromNamespace('http://schemas.xmlsoap.org/soap/encoding/')
                    . ':arrayType="'
                    . $this->getPrefixFromNamespace($this->getPrefix($typeDef['arrayType']))
                    . ":" . $this->getLocalPart($typeDef['arrayType']) . "[$rows$cols]\">"
                    . $contents
                    . "</$name>";
            }
        } elseif ($phpType == 'scalar') {
            if (isset($typeDef['form']) && ($typeDef['form'] == 'qualified')) {
                $elementNS = " xmlns=\"$ns\"";
            } else {
                if ($unqualified) {
                    $elementNS = " xmlns=\"\"";
                } else {
                    $elementNS = '';
                }
            }
            if ($use == 'literal') {
                if ($forceType) {
                    $xml = "<$name$elementNS xsi:type=\"" . $this->getPrefixFromNamespace($ns) . ":$uqType\">$value</$name>";
                } else {
                    $xml = "<$name$elementNS>$value</$name>";
                }
            } else {
                $xml = "<$name$elementNS xsi:type=\"" . $this->getPrefixFromNamespace($ns) . ":$uqType\"$encodingStyle>$value</$name>";
            }
        }
        $this->debug("in serializeType: returning: $xml");
        return $xml;
    }

    /**
     * serializes the attributes for a complexType
     *
     * @param array $typeDef our internal representation of an XML schema type (or element)
     * @param mixed $value a native PHP value (parameter value)
     * @param string $ns the namespace of the type
     * @param string $uqType the local part of the type
     * @return string value serialized as an XML string
     * @access private
     */
    function serializeComplexTypeAttributes($typeDef, $value, $ns, $uqType)
    {
        $this->debug("serializeComplexTypeAttributes for XML Schema type $ns:$uqType");
        $xml = '';
        if (isset($typeDef['extensionBase'])) {
            $nsx = $this->getPrefix($typeDef['extensionBase']);
            $uqTypex = $this->getLocalPart($typeDef['extensionBase']);
            if ($this->getNamespaceFromPrefix($nsx)) {
                $nsx = $this->getNamespaceFromPrefix($nsx);
            }
            if ($typeDefx = $this->getTypeDef($uqTypex, $nsx)) {
                $this->debug("serialize attributes for extension base $nsx:$uqTypex");
                $xml .= $this->serializeComplexTypeAttributes($typeDefx, $value, $nsx, $uqTypex);
            } else {
                $this->debug("extension base $nsx:$uqTypex is not a supported type");
            }
        }
        if (isset($typeDef['attrs']) && is_array($typeDef['attrs'])) {
            $this->debug("serialize attributes for XML Schema type $ns:$uqType");
            if (is_array($value)) {
                $xvalue = $value;
            } elseif (is_object($value)) {
                $xvalue = get_object_vars($value);
            } else {
                $this->debug("value is neither an array nor an object for XML Schema type $ns:$uqType");
                $xvalue = array();
            }
            foreach ($typeDef['attrs'] as $aName => $attrs) {
                if (isset($xvalue['!' . $aName])) {
                    $xname = '!' . $aName;
                    $this->debug("value provided for attribute $aName with key $xname");
                } elseif (isset($xvalue[$aName])) {
                    $xname = $aName;
                    $this->debug("value provided for attribute $aName with key $xname");
                } elseif (isset($attrs['default'])) {
                    $xname = '!' . $aName;
                    $xvalue[$xname] = $attrs['default'];
                    $this->debug('use default value of ' . $xvalue[$aName] . ' for attribute ' . $aName);
                } else {
                    $xname = '';
                    $this->debug("no value provided for attribute $aName");
                }
                if ($xname) {
                    $xml .= " $aName=\"" . $this->expandEntities($xvalue[$xname]) . "\"";
                }
            }
        } else {
            $this->debug("no attributes to serialize for XML Schema type $ns:$uqType");
        }
        return $xml;
    }

    /**
     * serializes the elements for a complexType
     *
     * @param array $typeDef our internal representation of an XML schema type (or element)
     * @param mixed $value a native PHP value (parameter value)
     * @param string $ns the namespace of the type
     * @param string $uqType the local part of the type
     * @param string $use use for part (encoded|literal)
     * @param string $encodingStyle SOAP encoding style for the value (if different than the enclosing style)
     * @return string value serialized as an XML string
     * @access private
     */
    function serializeComplexTypeElements($typeDef, $value, $ns, $uqType, $use = 'encoded', $encodingStyle = false)
    {
        $this->debug("in serializeComplexTypeElements for XML Schema type $ns:$uqType");
        $xml = '';
        if (isset($typeDef['extensionBase'])) {
            $nsx = $this->getPrefix($typeDef['extensionBase']);
            $uqTypex = $this->getLocalPart($typeDef['extensionBase']);
            if ($this->getNamespaceFromPrefix($nsx)) {
                $nsx = $this->getNamespaceFromPrefix($nsx);
            }
            if ($typeDefx = $this->getTypeDef($uqTypex, $nsx)) {
                $this->debug("serialize elements for extension base $nsx:$uqTypex");
                $xml .= $this->serializeComplexTypeElements($typeDefx, $value, $nsx, $uqTypex, $use, $encodingStyle);
            } else {
                $this->debug("extension base $nsx:$uqTypex is not a supported type");
            }
        }
        if (isset($typeDef['elements']) && is_array($typeDef['elements'])) {
            $this->debug("in serializeComplexTypeElements, serialize elements for XML Schema type $ns:$uqType");
            if (is_array($value)) {
                $xvalue = $value;
            } elseif (is_object($value)) {
                $xvalue = get_object_vars($value);
            } else {
                $this->debug("value is neither an array nor an object for XML Schema type $ns:$uqType");
                $xvalue = array();
            }
            // toggle whether all elements are present - ideally should validate against schema
            if (count($typeDef['elements']) != count($xvalue)) {
                $optionals = true;
            }
            foreach ($typeDef['elements'] as $eName => $attrs) {
                if (!isset($xvalue[$eName])) {
                    if (isset($attrs['default'])) {
                        $xvalue[$eName] = $attrs['default'];
                        $this->debug('use default value of ' . $xvalue[$eName] . ' for element ' . $eName);
                    }
                }
                // if user took advantage of a minOccurs=0, then only serialize named parameters
                if (isset($optionals)
                    && (!isset($xvalue[$eName]))
                    && ((!isset($attrs['nillable'])) || $attrs['nillable'] != 'true')
                ) {
                    if (isset($attrs['minOccurs']) && $attrs['minOccurs'] <> '0') {
                        $this->debug("apparent error: no value provided for element $eName with minOccurs=" . $attrs['minOccurs']);
                    }
                    // do nothing
                    $this->debug("no value provided for complexType element $eName and element is not nillable, so serialize nothing");
                } else {
                    // get value
                    if (isset($xvalue[$eName])) {
                        $v = $xvalue[$eName];
                    } else {
                        $v = null;
                    }
                    if (isset($attrs['form'])) {
                        $unqualified = ($attrs['form'] == 'unqualified');
                    } else {
                        $unqualified = false;
                    }
                    if (isset($attrs['maxOccurs']) && ($attrs['maxOccurs'] == 'unbounded' || $attrs['maxOccurs'] > 1) && isset($v) && is_array($v) && $this->isArraySimpleOrStruct($v) == 'arraySimple') {
                        $vv = $v;
                        foreach ($vv as $k => $v) {
                            if (isset($attrs['type']) || isset($attrs['ref'])) {
                                // serialize schema-defined type
                                $xml .= $this->serializeType($eName, isset($attrs['type']) ? $attrs['type'] : $attrs['ref'], $v, $use, $encodingStyle, $unqualified);
                            } else {
                                // serialize generic type (can this ever really happen?)
                                $this->debug("calling serialize_val() for $v, $eName, false, false, false, false, $use");
                                $xml .= $this->serialize_val($v, $eName, false, false, false, false, $use);
                            }
                        }
                    } else {
                        if (is_null($v) && isset($attrs['minOccurs']) && $attrs['minOccurs'] == '0') {
                            // do nothing
                        } elseif (is_null($v) && isset($attrs['nillable']) && $attrs['nillable'] == 'true') {
                            // TODO: serialize a nil correctly, but for now serialize schema-defined type
                            $xml .= $this->serializeType($eName, isset($attrs['type']) ? $attrs['type'] : $attrs['ref'], $v, $use, $encodingStyle, $unqualified);
                        } elseif (isset($attrs['type']) || isset($attrs['ref'])) {
                            // serialize schema-defined type
                            $xml .= $this->serializeType($eName, isset($attrs['type']) ? $attrs['type'] : $attrs['ref'], $v, $use, $encodingStyle, $unqualified);
                        } else {
                            // serialize generic type (can this ever really happen?)
                            $this->debug("calling serialize_val() for $v, $eName, false, false, false, false, $use");
                            $xml .= $this->serialize_val($v, $eName, false, false, false, false, $use);
                        }
                    }
                }
            }
        } else {
            $this->debug("no elements to serialize for XML Schema type $ns:$uqType");
        }
        return $xml;
    }

    /**
     * adds an XML Schema complex type to the WSDL types
     *
     * @param string $name
     * @param string $typeClass (complexType|simpleType|attribute)
     * @param string $phpType currently supported are array and struct (php assoc array)
     * @param string $compositor (all|sequence|choice)
     * @param string $restrictionBase namespace:name (http://schemas.xmlsoap.org/soap/encoding/:Array)
     * @param array $elements e.g. array ( name => array(name=>'',type=>'') )
     * @param array $attrs e.g. array(array('ref'=>'SOAP-ENC:arrayType','wsdl:arrayType'=>'xsd:string[]'))
     * @param string $arrayType as namespace:name (xsd:string)
     * @see nusoap_xmlschema
     * @access public
     */
    function addComplexType($name, $typeClass = 'complexType', $phpType = 'array', $compositor = '', $restrictionBase = '', $elements = array(), $attrs = array(), $arrayType = '')
    {
        if (count($elements) > 0) {
            $eElements = array();
            foreach ($elements as $n => $e) {
                // expand each element
                $ee = array();
                foreach ($e as $k => $v) {
                    $k = strpos($k, ':') ? $this->expandQname($k) : $k;
                    $v = strpos($v, ':') ? $this->expandQname($v) : $v;
                    $ee[$k] = $v;
                }
                $eElements[$n] = $ee;
            }
            $elements = $eElements;
        }

        if (count($attrs) > 0) {
            foreach ($attrs as $n => $a) {
                // expand each attribute
                foreach ($a as $k => $v) {
                    $k = strpos($k, ':') ? $this->expandQname($k) : $k;
                    $v = strpos($v, ':') ? $this->expandQname($v) : $v;
                    $aa[$k] = $v;
                }
                $eAttrs[$n] = $aa;
            }
            $attrs = $eAttrs;
        }

        $restrictionBase = strpos($restrictionBase, ':') ? $this->expandQname($restrictionBase) : $restrictionBase;
        $arrayType = strpos($arrayType, ':') ? $this->expandQname($arrayType) : $arrayType;

        $typens = isset($this->namespaces['types']) ? $this->namespaces['types'] : $this->namespaces['tns'];
        $this->schemas[$typens][0]->addComplexType($name, $typeClass, $phpType, $compositor, $restrictionBase, $elements, $attrs, $arrayType);
    }

    /**
     * adds an XML Schema simple type to the WSDL types
     *
     * @param string $name
     * @param string $restrictionBase namespace:name (http://schemas.xmlsoap.org/soap/encoding/:Array)
     * @param string $typeClass (should always be simpleType)
     * @param string $phpType (should always be scalar)
     * @param array $enumeration array of values
     * @see nusoap_xmlschema
     * @access public
     */
    function addSimpleType($name, $restrictionBase = '', $typeClass = 'simpleType', $phpType = 'scalar', $enumeration = array())
    {
        $restrictionBase = strpos($restrictionBase, ':') ? $this->expandQname($restrictionBase) : $restrictionBase;

        $typens = isset($this->namespaces['types']) ? $this->namespaces['types'] : $this->namespaces['tns'];
        $this->schemas[$typens][0]->addSimpleType($name, $restrictionBase, $typeClass, $phpType, $enumeration);
    }

    /**
     * adds an element to the WSDL types
     *
     * @param array $attrs attributes that must include name and type
     * @see nusoap_xmlschema
     * @access public
     */
    function addElement($attrs)
    {
        $typens = isset($this->namespaces['types']) ? $this->namespaces['types'] : $this->namespaces['tns'];
        $this->schemas[$typens][0]->addElement($attrs);
    }

    /**
     * register an operation with the server
     *
     * @param string $name operation (method) name
     * @param array $in assoc array of input values: key = param name, value = param type
     * @param array $out assoc array of output values: key = param name, value = param type
     * @param string $namespace optional The namespace for the operation
     * @param string $soapaction optional The soapaction for the operation
     * @param string $style (rpc|document) optional The style for the operation Note: when 'document' is specified, parameter and return wrappers are created for you automatically
     * @param string $use (encoded|literal) optional The use for the parameters (cannot mix right now)
     * @param string $documentation optional The description to include in the WSDL
     * @param string $encodingStyle optional (usually 'http://schemas.xmlsoap.org/soap/encoding/' for encoded)
     * @access public
     */
    function addOperation($name, $in = false, $out = false, $namespace = false, $soapaction = false, $style = 'rpc', $use = 'encoded', $documentation = '', $encodingStyle = '')
    {
        if ($use == 'encoded' && $encodingStyle == '') {
            $encodingStyle = 'http://schemas.xmlsoap.org/soap/encoding/';
        }

        if ($style == 'document') {
            $elements = array();
            foreach ($in as $n => $t) {
                $elements[$n] = array('name' => $n, 'type' => $t, 'form' => 'unqualified');
            }
            $this->addComplexType($name . 'RequestType', 'complexType', 'struct', 'all', '', $elements);
            $this->addElement(array('name' => $name, 'type' => $name . 'RequestType'));
            $in = array('parameters' => 'tns:' . $name . '^');

            $elements = array();
            foreach ($out as $n => $t) {
                $elements[$n] = array('name' => $n, 'type' => $t, 'form' => 'unqualified');
            }
            $this->addComplexType($name . 'ResponseType', 'complexType', 'struct', 'all', '', $elements);
            $this->addElement(array('name' => $name . 'Response', 'type' => $name . 'ResponseType', 'form' => 'qualified'));
            $out = array('parameters' => 'tns:' . $name . 'Response' . '^');
        }

        // get binding
        $this->bindings[$this->serviceName . 'Binding']['operations'][$name] =
            array(
                'name' => $name,
                'binding' => $this->serviceName . 'Binding',
                'endpoint' => $this->endpoint,
                'soapAction' => $soapaction,
                'style' => $style,
                'input' => array(
                    'use' => $use,
                    'namespace' => $namespace,
                    'encodingStyle' => $encodingStyle,
                    'message' => $name . 'Request',
                    'parts' => $in),
                'output' => array(
                    'use' => $use,
                    'namespace' => $namespace,
                    'encodingStyle' => $encodingStyle,
                    'message' => $name . 'Response',
                    'parts' => $out),
                'namespace' => $namespace,
                'transport' => 'http://schemas.xmlsoap.org/soap/http',
                'documentation' => $documentation);
        // add portTypes
        // add messages
        if ($in) {
            foreach ($in as $pName => $pType) {
                if (strpos($pType, ':')) {
                    $pType = $this->getNamespaceFromPrefix($this->getPrefix($pType)) . ":" . $this->getLocalPart($pType);
                }
                $this->messages[$name . 'Request'][$pName] = $pType;
            }
        } else {
            $this->messages[$name . 'Request'] = '0';
        }
        if ($out) {
            foreach ($out as $pName => $pType) {
                if (strpos($pType, ':')) {
                    $pType = $this->getNamespaceFromPrefix($this->getPrefix($pType)) . ":" . $this->getLocalPart($pType);
                }
                $this->messages[$name . 'Response'][$pName] = $pType;
            }
        } else {
            $this->messages[$name . 'Response'] = '0';
        }
        return true;
    }
}